A membrane reactor for hydrogen storage and transport system using cyclohexane-methylcyclohexane mixtures

An addition of 20 mol% methylcyclohexane to cyclohexane resulted in about 40°C decrease in the freezing point. The increase in conversion became larger in a region of high reaction pressure because a larger pressure difference increased the amount of hydrogen separated. The conversion of methylcyclohexane was higher than that of cyclohexane at the same condition. In the dehydrogenation of the mixtures, each conversion was found not to be affected by the other very much. In conclusion, the mixtures of methylcyclohexane and cyclohexane can be a hybrid type of chemical hydride, which will be available as a liquid hydrogen carrier at −30°C.